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  <meta charset="UTF-8">
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  <title>Document</title>
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<body>
  <script>
    // 下面res的返回值是 undefined 说法对吗
    const arr = [11, 22, 33, 44]

    const res = arr.find(item => item > 50)
    console.log(res); 
  </script>
</body>
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